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Inc. 409 So. 3rd Avenue KENT, WASHINGTON 98031 (206) 854.2043 JOB sG -w v �I •� / �4DiC JJ SHEET NO.— ✓ OF �✓ CALCULATED BY4e ` �v � DATE �iCIL W I J61- CHECKED BY SCALE �STvaM+4/NA G,F WN T ' D DATE TX? : tv ._146IN CT. ! :GN PACc< jk--fGn +�{�......�"" L/�(lMi �' i�=G�= V'!CiN.i�/�/� ,. — — - — ��!_ _. LVE1rr :. �1MO':;—q-v >Cz(s = ='' pA1/aC /�zE'rv7� Al\j2L. `/. APF7H c r•_Ts j P,4�aE /8 fS"i�.� :".ur .-Y✓f� �7 � ...._ --'"' wit. + / '� �-� L1� .�•f"T%� /�'�NG� C�Uu/.;?`�-�' C.S](1�'i �'( Townsend -Chastain L :soc. Inc. 409 So. 3rd Avenue KENT, WASHINGTON 98031 (206) 854-2043 eC 7:,- 2 77:r- -c,7 SHEET NO, OF CALCULATED BY-P-OkZk� DATE i-' PC/ L - 20 -4 1 CHECKED BY DATE SCALE L L 0- CIL'- 34zc 34 5:1 Z-7 — 3 c),'. 42- Z 57 1". E,4 -1 Ll I /,Kj /J6 oil L L rc C) r 7V Townsend -Chastain _ isoc. Inc. 409 So 3rd Avenue KENT, WASHINGTON 98031 (206) 854.2043 JOB-�-� - _ ,Nr _ 78Z 7 -_ SHEET NO - -�.L OF _ CALCULATED BY ��% DATE T�� CHECKED BY DATE __.. 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III 4IUU ise 410 S 4w S wx • •1300 H� Slope Length in Feet Imp -04 —. � '. .' .._r._:_.'.: _tom � ._ _ •_�.. ..� w .02 io 20 30, 40 i EROSION TONS /AG (E RKLSCP) G S -- . - 4 200 Ln _ *IBcare 6ro And (C-1.0, J 40 PC- Or. Per Fts �,C y FSs Yr �IAJT V K/ jCv �:4"i 6D%AS6?YA7Tv,- V/5M itT cS►M�f� 9 OF l9 TEM �CRAi4 y �Sc /f�'F/✓T f'G.�/OS NOMOC—PAPH r RL//VOAF VOLUME ( (TYPE lA TORM AREA) � �reCl Matron - __ - VQ' ''( — w —?C �4 2 n � 1 r,� 1 oc S. 7-5- -7 70 .o -7 # z h � �c- --tor - -- - SI —� 55- - Q fJ e A - 1s E.o 2.f 3.0 RUN FF - WCHFSItj Q 1060-T- I �y?5 FriACC, Qn o 'r Qs�! Upon o Tim °' 8 p e of 2 4500- 111' Con�tnfrafion of .25hr. ,3 3 prawn or► Auk �7, gJ 'By RTM �- � �. _ j - . �_.—J Townsend -Chastain & ,soc. Inc. 409 So. 3rd Avenue KENT, WASHINGTON 98031 (206) 854-2043 JOB Cy SHEET NO /O OF — CALCULATED CALCULATED BY �. l /1��C)iV E DATE -Cl K IL V I elf CHECKED BY SCALE DATE Z.t { - f aprlu K E—tZO '�:r Ui -) I:;;0tvD WILL [' Si E� USIrvC� C U)_,T ' U. 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FREO NELSON I \ —J cl 479 STD —�r-- --1Xr 11474 I I it 11 I ❑I II `f 494 I Ii\ I1 I I ❑ I I I I ` - T R E E S — 4X TI 46a 1 I '471 / x II x X 479 j I 11 \ — 4�4 f ❑ x I TREES 1 ," BRUSH AL / 450 �\ . 439 I: SPRING GLEN \� i \ d ( I ELEM SCHOOL I r, Y. BR � \\ 4�C � 461 , I J g -x- 43410 it \�� `�, �� ] 1 ;LI ❑ 111 AL ,1 Iii ----- II �-- E i lid 11 tI_ JIL— --J JAL— —I_ _Jl—�--z — — —� _ -- Sjj— '1r _IL II II 11 •- `J - - - - - x - - --� ,- -� - '1, a4e It 439 \ A x f I I ll I I I I II II I 42j.. 11 1 I I i \\� p 11 � I I � IIcj 1 f c BR -- \\ Townsend -Chastain d .soc. Inc. 409 So. 3rd Avenue KENT, WASHINGTON 98031 (206) 854-2043 JOB �NT =Ea SHEET NO--D L r��,,,��```` ,,L� s� OF - 1 ✓ CALCULATED BYb• oebu'Cz DATEZELA 1,Sf� CHECKED BY SCALE ZZo 7.3 760 ss 3 M�j 'mu, 340 D.2? ............:... _........... 330 0.3 0 DATE /. ,yj 22rD r + ;S or,>F:.t 4- 6D scc 1. =7 ,;, O. 95 Pi- .F=T 0.24c PT"�-. Townsend -Chastain Assoc. Inc. 409 So. 3rd Avenue KENT. WASHINGTON 98031 (206) 854-2043 JOB SHEET N0.- /!fit OF / ./ CALCULATED BY N .� DATES IXNA 7Z lf% CHECKED BY DATE SCALE C5n-W,/ Ji L0/u7'' x> 45 . Ctrs i3 5 7TLJsr f� t'rPlTfiTi��v CU2alE� �. �' �. TitvC ACeeA&� C' -- �5C QTiACt4C � 7 tt teL_A i IC .MAP _ (ce 50 (0 4c5) 42-7) - 9.61 CPS 7p-t C(. LVe1z- ► �Lll{'fq Z� ► / 7 7:< _ �5/a sliv 77) T t (/r' a/ r � C'.�F'3 � 9 . .l f" 7`NE r�. _1 ►� i., vi: �_ OVE4 71:,` ��+��* . �� ,.: 1 �-'�':.�' �'C� 1-'' C' L� �Yt�r �. i 3 G,� I LL C� A► v' AL �f i� L . EV✓, `Z ce-' A/vb LlJl-Wlr.aL— a0"D177 eC t67 u x;>- C u t., V6 7 : . SLUE _ �. ZZ`/ . I�ANNrvG-r5 RCxcC��S � n = G-Or2 "41Vj =l�_.5 E(4)Ua 7T70Y\) n R r7 4- Townsend -Chastain d soc. 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I• o IAf�` •-71---1�`� '1 A mClu x �, Inc ' Su "•i�``•.g• I Apt) •=� An j i —_�r� ►PrA!?v�7Rl �• r, '�� .1 •Pu %L� W f Wu O I ��• M 194�' " :i� ° ► \ •I : ill;; N; Aill ' I AgC �• �' .. •. • � i� •Lit • I • °� Arno ••I •� • '• a. �'' l,+ .:�• ' '� \� f :Asp'' l• 'f"a"" ��. 32 c y ss F01�,r 7&97 1<dv6r Cvu^'r`i CGS Rv�! ro•.> - FS o� I3. c�lSTT�I re r NOMOGRAPH W?. 1401,4 *L- SEDIMENT VOLUME FOFZ.DE.TENnot4-SrVRA&E fir. / �` (�`l..r'7� ii/. ,.V.�% -•: _�� • •t .. _ 4.0 ERODIB/L/TY '-- - .. y... ..... r..,_.. -_ _ 171 .02 ---y- U 1 >n . , ao if. 200 S 400 f 600 . •,,0, H•• ... p .. 20 . _ 30 Slope Length in Feat -- EROSION TONS /AC �1v (E =RKLGC_ P) - "IZZ3 _.. 7o.�.:...- _. _ .. _. .. a2 D0. c, *Bare 6roNnd (Cwl•O, a K/Ajor eOU", &N,567 1A71c ,D15M is r OF i3 TEM PC}�Ai4 Y Sc o/�E/�T f'G�t/OS NOMOCRF+FHI I RL/NOfF VOL UME ( TYPE 1A STORM AREA) CD n � CC G 75- V -7f �. r - �G� 70- h 2 T7' � 91 } p <J e A r.G S E.0 2.5 .3.0 J`.'Y.��GLC b✓C :SO/G,� C.4o U� RUN FF -11,�C HFS _�. 0. Q r O ! ,�• aL, � �r7 7s V '` � J loll) Bowl Upon o Time of i 4500_' ✓ �Q� Con^tn%rofion aF -25hr. 5000- �Yawn on Aug ;71 8D :By RTM Townsend -Chastain , asoc. Inc. 409 So- 3rd Avenue KENT, WASHINGTON 98031 (206) 854-2043 JOB S-�1 -tLN T Mcn7 SHEET NO. -.- OF_.- CALCULATED BV '` �'�' L� ( �F". DATE JA K__'lL CHECKED BY SCALE DATE 1 k ZZ--r�,!op�4' rt � r�'O �r (?� >. AND W.IL.L [-` - Li FTC U S I��C► - �� 44 t77 f� bra .0 VOC..r La M E , �-��;�`✓ r r--� �-- _..XV - l NC (A Lh L.I.ICC.- l.U. ctf-& rE-IC -- -� ► L?�A: lam Townsend -Chastain , asoc. Inc. 409 So. 3rd Avenue KENT, WASHINGTON 98031 (206) 854-2043 JOBS' S /VT IC.�D SHEET NO. _.. OF �j�'�/3 CALCULATED BY ` AL-DON�'L DATE �%�]L.1_�-1 a2&2' CHECKED BY DATE SCALE ... _... .. .__ ....... .. .._ _........... .. :.__. ....... ............................ r 7505) 450 ' 1 �- , x 457 O S/ b0 / 0 x I� 473 BRU \ I X 459 482 : 1 \! b 477 a OW AT E R \ / TOWER x 464 R. TREES / 1 I 475 \ \ // ❑ I _ W-LAKE PIPELINE-- 425 \ 4ki ' \ I DW 1 1 \\ I 473 I - - \� r� TREES TREES I I J LJ SCHOOL JR. \. I x HIGH -J FRED NELSON \\\ \ rP �� '�4461 1 x479 425 I \ \ I _ I j`0� I - i I ❑ L.r' \ xrr_ ir IF 11 �1D _ ST. ...1�-- -� Mt71 --ir �� !I II 11 \ ----- -_ ----�1 r----}r-� _ Imo- 1 I I I ❑� 72 \�l x454 R E E S \ \\� �\ \\ 471 1 Ke (( 471 q x IX I k z 479 T i (I ♦ �i II I I _ 474 k a 'Y \� TREES I I B R U S H K � I �--�` I 1 v� , �! ❑ J� -� >< 462 476 V _ 1 / I ; 450 \ 439 �\\ z 466 �1b 11 ` SPRING GLEN Xcz K 46l►x r • PR \� .470 SCHOOL j r x D lit 1 C ELEM I' �, II \�\ � I 'U ❑ �I x451 II `1 43411 Ck ��\ `' `�1 I�; BRI —_---- II `— nilk/1 _ — —� U I i � Ild j1 d 1� � � 11 �+ _1� ,= _ _ _+ - - _ 1`_- - -,5� � r _ _ �i � rs i;�i 1 _ —�4— — �I x I �39 �4 A It ` i I I u [� I I I ❑ C It I 4t�.. ' I I 75 � 1 a I I p [i] ,A SEWER DESIGN ov�fr;;; _ PROJECT -may r'al-jz- DES. r. CHK. k'o- DATE . C/u✓ _ .i � ll7i-=- i'—, s/7 C" C11IGF-T 12 .� SUMMATION LOCATION OF AREAS A) L OFTH OVERLAND FLOW (L) TIME OF CONC. (c) RAINFALL INT. Su (1) DISCHARGE (a) OxEA(I)C SECTION OF STORM DRAIN SYSTEM SLOPE IVELocrTySIZE i I (S) (V) OF PIPE (Dio) INVERT ELEV. GROUND ELEV. ' i RONA _ NO. AREA i ACRES Ft. Sect, Min. In/hr. cu.It./sec. From Dist.00 To Ft./Ft. it Ft./Sec, in. Upper Lower Upper Lowe/ 1 2 3 _ 4 s� 6 -7 t3 9 10 11 12 13 14 IS 16 17 1• D o. 95 P4, •/f i • �7 o, to 0,57 lz 29 0. z3 I- �z 2#i5 io 1 4 9.96 11 oo q 43 -cu 44 o o-_J44 I z Q 3. i.; ,Sh 4l /Z '9-4rZ 2 Z3 3.62 44 S-GO 44Z-S(i 446 _88 — 4-7/ z_,D � - o 4 4C-' f 43 - 0 ' - 1 �S!0.21 0 c�� J .J =r�,yk . -- j 25-30 5•• 5 � � � 1. (09 � 5 ,p _ -36„ %� , 4 ., *(D 0_ 50 2 — _42z.- 22-&u - u-, 419. s�) 437 -t 4 / if Z — 2-80) �_ -� --- ),vs rc - ,� 1 -9-5o 4i¢_vu z -UU 4i -r.,�, 1 S.so 5.w •57 D ' 1w l ' 3o -5- /z, 416.b� 1 4- _��_ ate'- 12-51 00- J 9 - 4 LZ 5.50 s. S-V �--- _ -%` J - •-� �Y=•i�¢ -. y �, 2. � �, -_-'.- ;�'- �j ?� J I U 10 2.35 2.7p; a ,-, L, 0 l I Z 9' 0.62 �- �2 �25 (13:51 ! d_h21 73 0.70(96 #/�5 Zsg i z4fj- �. 12- 45o. s 43S.Sv 5 .o± 440.O t 5. La 34 I I4-r3_: a �7 ! I- �� 1.40 1- 4. 0 I ee-gl zzo C'6ff�1( C�*/,6. 64 CB# 9 4,75, 0, 56 — r2 35- ) , 4 ' -7zN' 4�� - 3 4z7.30 440.,of 4 7z 1. 6 Z 4 21 _G4s7,t 1 _ — TOWNSEND-CHASTAIN & ASSOC IC. 409 South Third Avenue KENT, WASHINGTON 98031 (206) 854-2043 C� p,a= )QE ti! T'o ,'/ crF P(.)8 L1 C J�,J Cy�KS /_It4P,. /-71 o.`/o "-{19 A1, I'Gfomo LETTER Date / Subject ,.1',..,J 7 e 9 7 lnnl�-�12c�lErr� E �l,T-S` PC- �4hf �' Plz p�� L� .pr..� TJ CA Lc ✓ L �97'l e nl S �°'� Ttt� C'y L S �� e �., ! T o F'r- S. r� Ten •� a ! �,�2z vE i ElPlease reply XNo reply necessary SIGNED FORM 166-2 AvaiWHe from A Inc, Groton, Maas 01450 Townsend -Chastain & oc. Inc. 409 So. 3rd Avenue KENT, WASHINGTON 98031 (206) 854-2043 JOB7go'7_/_ e-SS Po,.JT SHEET NO — _ OF -- CALCULATED BY A GF DATE 7- 2 % — 93 CHECKED BY SCALE DATE STb,Qry, D2,-n i.Jq GE C',g L Cv LATl ati/S r>7 Pjp o V E r77 EFTS• 7,1S¢GTt DW O F' ,Q,eRP T o gE , -" PAR 4 VC-P /S S/ 7-✓,,#"r4Fp /,./ Try Y4 pF -rH5 /Ve l4 OF Zq- 23- S C/ry of /a C00,.1-rLi , GvA 'THe /Moit o VC n-1 E Nr5' A,? E /-/ Co Ek& GXJ7 / o.. / GtJ /4C [N_C L•✓ DE_ : 5E 14.:2 nd 57; FRS» DvR EAS'r . Scua1P09:?RV W�5'r RNA r�la!eT,-r t�/ESra�RLy To p pa,�r APP�DJC in-,qr�Cy /Sp ' Sa v-rt.,r. Qc _ '5e : /G P 5:r THE 5_rR (_ PT SE G7 / 0,A/ W LL. B E G u 126., 6urm-P, . f' �D __ .StD W<t L O,.IE SIDE. / $E/_44 3L0 LF FLOW. L/n!E lrp �t_p L,,o _ C.� � E- . t C � ni,J 4* rc A T& rw P a e„ rl y CL7 4- DIE - SA C : f--1 v i,d G A 3ca'� RrID E!C'T1?�/AEn G✓". %� (JJ'S7RErgM_ FGo�.�S To THE �! TZpAaSipE D,rGt! f-�7F75 BE�� ,qD, )Ze;5k 6I� (SEE grfTS Z £ 3 OF 4) AND F�_ �oNTl2rBuT�Ry, D�ia,AJrgG� AIP6i1 /$ AVAi�Rf3� D,tl ��'QvEST' Try TErnnae�,ey CvL- DE-f'AG i+<tas l3ef�.o,�F'SL7' (' FR arr� CEr/-rE�l,Ja/,F TO AVU /A Er1 fleef►CHm�,JT AT -THE WEST ,e�V✓ L//JF 4 W,Aa-Ai 16 g3A,eRIGA /00 95 AL 6'c V,0ED FdiQ s`��T`f • A 19016 c f t i l� Q/ % .• Townsend -Chastain & Assoc. Inc. 409 So. 3rd Avenue KENT, WASHINGTON 98031 (206) 854-2043 JOB %B o9% Cl/l'RE-SS PoI.17' SHEET NO -- 2 - - OF - 4- CALCULATED BY " 1G'S= DATE 7- 1/ —,33 CHECKED BY DATE SCALE STORM SEWER DESIGN PROJECT cyPREss Po, -IT- DES. CHK. DATE SUMMATION LENGTH OF TIME RAINFALL DISCHARGE SECTION SLOPE IVELOCITY SIZE S� TGA 0 75o q - 7 LOCATION OF I AREAS OVERLAND CONF INT. (0) OF STORM DRAIN ��s ; OF INVERT ELEV. GROUND ELEV. REMi FLOW i (EA) (tc) (1) O=EA(I)C SYSTEM (S) (V) (Dio) _ NO. AREA i ACRES Ft. Sect, Min. In/hr. cu. ft./sec. From Dist.(ft.) To Ft./Ft. Ft./Sec, in. Upper Lower Upper Lower QMA)C 1 AC• 2 3 4 5� ~ 6 7 8 9 10 11 12 13 14 15 16 17 i 18 LC FS /a.r/ 4G• uPsraE,w� la.?-2 04G O• o�L 2/.79 /• • 4G Srua /8 GS 6 /S. oo •co r"p 4s7. o� ¢54.3 0 r ,�_ • oo i d5 23 V--- �• 47 CAV10,14 a r0•�i —/2• 7 i /.I %9 0.43.22.12 ,D 35 G$ S �• oo 6.75 ��c. 45Q.3s 45/•GD 23 45 BG 5.35 Ga a�F-ia i�/L a D. 7? 1 /3• F8 D•44- 2a.s` /. os. •5, / D S - moo 4 z • fa 7. 50 ��c . 45i• Go � ¢� Bo �� . b-1 — 5. 9s' - — o,IFr�� o d,3o Zz.B6 /. 0/ /6 4. _ Zo 0 3 5.50 /l. �e �� 44 o 4-3. 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Cf j; t opr,===� - ►'- 1 ' T I TREE y µ � !I a• �iff • II � i .+` + �� I 1 P:= 0 =-_ 1 L-- i 1 r ael-65 P61 A� DRAINAGE HOLD HARMLESS Au..E.EMENT TO BE RECORDED on the following described property situated in King County, Washington: SEE ATTACHMENT "A": WHEREAS the undersigned, as a property owner within the City of Renton or developer within the City of Renton is building or has built improvements which require a storm drainage system to be installed, and WHEREAS the undersigned has a storm drainage system installed on the property in question and installation of the City required storm drainage system would require the installation of a duplicate, parallel system, and WHEREAS the undersigned wishes to save the expense of the installation of such a parallel system, while realizing that the utilization of the on -site storm drainage system might result in additional risk of damage to the system, and WHEREAS the undersigned does not wish to install a separate storm drainage system to convey runoff from adjacent properties and/or public rights -of -way across or around the above -described property, and WHEREAS the storm drainage system installed in and across the above -described property has adequate capacity, based upon full development in accordance with current zoning to convey the runoff from adjacent properties and/or public rights -of -way, and WHEREAS the undersigned does hereby agree and consent to allow without benefit of a specific easement the connection to and extension of the private storm drainage system, NOW THEREFORE, in consideration of the City of Renton not requiring a separate storm drainage system, the undersigned does agree to hereby establish, grant and impose restrictions and covenants running with the land herein described with respect to the operation and -1- maintenance of the on -site storm drainage system by the undersigned, their successors, heirs and assigns and to hold the City of Renton harmless from any claims, causes of action, damages, liability loss or cost, or expense of any type or nature which may accrue to the City by reason of the waiver of these improvements, or by invasion by surface water onto the above -described property or by connection to and extension of the private storm water system, to include the cost of any suit or defense by the City, the undersigned shall likewise, when it has obtained written notice from the City, assume and defend any such suit or action without cost or expense to the City,,,including payment of any judgment or cost. STATE OF WASHINGTON ) ss COUNTY OF KING ) I, the undersigned, a notary public in and ,for the State of Washington, hereby certify that on this ij' da� of Zip a C&,L- - 19 c,,q , personally appeared before me l to me known to e t e in ivi s escri e in an who execute the foregoing instrument, and acknowledged that signed and sealed the same as ��_ free and voluntary act and deedfor the uses and purpose N&6ary Public iri-and for th SVtate of Washington, residing at ` ATTACHMENT "A" A 30 foot -wide strip of land within Section 20 and 29 in Township 23 North, Range 5 East, W.M., King County, Washington; being 15 feet on each side of the following described centerlines A and B: Centerline A: Beginning at the north quarter corner of said Section 29; thence S 88046'45"E a distance of 75.30 feet to the beginning on a curve concave to the southwest having a radius of 83.80 feet and the center of the circle of said curve bears S1013'15"W; thence southerly along said curve through a central angle 46023'34" an arc length of 67.85 feet to the beginning of a reverse curve concave to the northeast having a Cradius of 83.80 feet and the center of the circle of said curve bears N 47"36149"E; thence southeasterly along said curve through a central angle of 46023134" an arc length of 67.85 feet; thence S 88046'45"E a distance of 5.53 feet to the terminus of said centerline A; n Centerline B: OD Beginning at the North quarter corner of said Section 29; thence northwesterly along a curve concave to the northeast having a radius of 305.06 feet and the center of the circle of said curve of said curve bears N 20 50'42"W; through a central angle of 50°14'30" an arc length of 267.50 feet; thence N 42036'12"W a distance of 102 feet to the terminus of said centerline B.